diff mbox

[v4,03/10] omap: add mdio platform devices

Message ID 1284498612-25294-4-git-send-email-cyril@ti.com
State Not Applicable, archived
Delegated to: David Miller
Headers show

Commit Message

Cyril Chemparathy Sept. 14, 2010, 9:10 p.m. UTC 
This patch adds mdio platform devices on SoCs that have the necessary
hardware.  Clock lookup entries (aliases) have also been added, so that the
MDIO and EMAC drivers can independently enable/disable a shared underlying
clock.  Further, the EMAC MMR region has been split down into separate MDIO
and EMAC regions.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Michael Williamson <michael.williamson@criticallink.com>
Tested-by: Caglar Akyuz <caglarakyuz@gmail.com>
---
 arch/arm/mach-omap2/board-am3517evm.c |   27 ++++++++++++++++++++++++++-
 1 files changed, 26 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 4d0f585..5dd1b73 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -18,6 +18,7 @@ 
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/clk.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/i2c/pca953x.h>
@@ -41,6 +42,27 @@ 
 #define AM35XX_EVM_PHY_MASK		(0xF)
 #define AM35XX_EVM_MDIO_FREQUENCY	(1000000)
 
+static struct mdio_platform_data am3517_evm_mdio_pdata = {
+	.bus_freq	= AM35XX_EVM_MDIO_FREQUENCY,
+};
+
+static struct resource am3517_mdio_resources[] = {
+	{
+		.start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
+		.end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
+			  SZ_4K - 1,
+		.flags  = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device am3517_mdio_device = {
+	.name		= "davinci_mdio",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(am3517_mdio_resources),
+	.resource	= am3517_mdio_resources,
+	.dev.platform_data = &am3517_evm_mdio_pdata,
+};
+
 static struct emac_platform_data am3517_evm_emac_pdata = {
 	.phy_mask	= AM35XX_EVM_PHY_MASK,
 	.mdio_max_freq	= AM35XX_EVM_MDIO_FREQUENCY,
@@ -50,7 +72,7 @@  static struct emac_platform_data am3517_evm_emac_pdata = {
 static struct resource am3517_emac_resources[] = {
 	{
 		.start  = AM35XX_IPSS_EMAC_BASE,
-		.end    = AM35XX_IPSS_EMAC_BASE + 0x3FFFF,
+		.end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
 		.flags  = IORESOURCE_MEM,
 	},
 	{
@@ -121,6 +143,9 @@  void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
 	pdata->interrupt_disable	= am3517_disable_ethernet_int;
 	am3517_emac_device.dev.platform_data	= pdata;
 	platform_device_register(&am3517_emac_device);
+	platform_device_register(&am3517_mdio_device);
+	clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
+		      NULL, &am3517_emac_device.dev);
 
 	regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 	regval = regval & (~(AM35XX_CPGMACSS_SW_RST));